Zjemnění mikrostruktury oceli volným kováním

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F06%3A00000027" target="_blank" >RIV/49777513:23210/06:00000027 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Refinement of steel microstructure by free-forging

Popis výsledku v původním jazyce

It is well known that severe plastic deformation of technical alloys can result in microstructure refinement and improvement of mechanical properties. In this study severe hot deformation was applied on low alloyed 0.2C-1.5Mn-2Si-0.05Nb steel and austenitic 0.07C-18Cr-2Mn.-10Ni steel. Cast bars were annealed and processed in a full-hydraulic press. Different temperatures of preheating, dwells and strain levels were applied. Between individual blows specimens were rotated at 90° or 45°. Microstructure was characterised using optical metallography, scanning and transmission electron microscopy. After optimization of processing fine grained structures with convenient phase composition were obtained. Low alloyed steel consisted of ferritic-bainitic microstructure with high content of retained austenite. In the case of austenitic steel recrystallisation annealing had to be included at the end of processing in order to obtain uniform grain size in the whole volume of specimens.

Název v anglickém jazyce

Refinement of steel microstructure by free-forging

Popis výsledku anglicky

It is well known that severe plastic deformation of technical alloys can result in microstructure refinement and improvement of mechanical properties. In this study severe hot deformation was applied on low alloyed 0.2C-1.5Mn-2Si-0.05Nb steel and austenitic 0.07C-18Cr-2Mn.-10Ni steel. Cast bars were annealed and processed in a full-hydraulic press. Different temperatures of preheating, dwells and strain levels were applied. Between individual blows specimens were rotated at 90° or 45°. Microstructure was characterised using optical metallography, scanning and transmission electron microscopy. After optimization of processing fine grained structures with convenient phase composition were obtained. Low alloyed steel consisted of ferritic-bainitic microstructure with high content of retained austenite. In the case of austenitic steel recrystallisation annealing had to be included at the end of processing in order to obtain uniform grain size in the whole volume of specimens.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F02%2F1521" target="_blank" >GA106/02/1521: Ultrajemné struktury v kovových materiálech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Achievements in Materials and Manufacturing Engineering

ISSN

1734-8412

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

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Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

8

Strana od-do

17

Kód UT WoS článku

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EID výsledku v databázi Scopus

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